Method, apparatus and device for adjusting brightness of vehicle-mounted display screen, and storage medium

Abstract

The present application relates to the technical field of display screens, and discloses a method, apparatus and device for adjusting brightness of a vehicle-mounted display screen, and a storage medium. The method for adjusting brightness of the vehicle-mounted display screen comprises: on the basis of a display category of a video frame to be displayed, determining a target area in said video frame; acquiring standard display brightness that is preset and corresponds to ambient brightness inside a vehicle; and controlling preset pixel points on the vehicle-mounted display screen of the vehicle that correspond to the target area to be lit up at the standard display brightness, so as to display said video frame by means of the vehicle-mounted display screen. The present application provides a brightness adjustment strategy for the vehicle-mounted display screen, so as to improve the stability of the vehicle-mounted display screen.

Description

Methods, devices, equipment and storage media for adjusting the brightness of vehicle-mounted displays

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202510003532.9, filed on January 2, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of display screen technology, and in particular relates to a method, device, equipment and storage medium for adjusting the brightness of a vehicle display screen. Background Technology

[0004] With the continuous development of technology, the resolution and display effect of in-vehicle displays have been continuously improved. In-vehicle displays have become standard equipment in most vehicles and are widely used in navigation, entertainment and vehicle status monitoring. Summary of the Invention

[0005] This application provides a method for adjusting the brightness of a vehicle-mounted display screen, the method comprising the following steps:

[0006] The target region in the video frame to be displayed is determined based on the display category of the video frame to be displayed;

[0007] Obtain the standard display brightness corresponding to the preset ambient brightness inside the vehicle;

[0008] The target area is controlled to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

[0009] In one embodiment, the display category includes vehicle status information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0010] When the display category of the video frame to be displayed is the vehicle status information, image segmentation processing is performed on the video frame to be displayed to obtain the information carrying area of ​​the video frame to be displayed carrying effective information, and the information carrying area is determined as the target area in the video frame to be displayed.

[0011] In one embodiment, the display category includes navigation information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0012] When the display category of the video frame to be displayed is the navigation information, edge detection processing is performed on the video frame to be displayed to obtain the path area where the navigation route to be driven is located in the video frame to be displayed, and the path area is determined as the target area in the video frame to be displayed.

[0013] In one embodiment, the display category includes entertainment audio-visual information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0014] When the display category of the video frame to be displayed is entertainment audio-visual information, image segmentation processing is performed on the video frame to be displayed to obtain the foreground region in the video frame to be displayed, and the foreground region is determined as the target region in the video frame to be displayed.

[0015] In one embodiment, the step of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, includes:

[0016] When the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, and the non-target area is controlled to light up the corresponding preset pixels on the in-vehicle display screen according to the preset display brightness, so as to display the video frame to be displayed through the in-vehicle display screen. The non-target area is the area in the video frame to be displayed other than the target area, and the preset display brightness is lower than the standard display brightness.

[0017] In one embodiment, the step of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, further includes:

[0018] In response to a display wake-up event, a display wake-up command is generated;

[0019] Based on the display screen wake-up command, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed through the in-vehicle display screen.

[0020] In one embodiment, the display screen wake-up event is when the distance between the in-vehicle user and the in-vehicle display screen is less than a preset threshold, the in-vehicle user's line of sight falls on the in-vehicle display screen, or an interactive operation of voice wake-up is performed on the in-vehicle display screen.

[0021] In addition, this application also provides a vehicle display screen brightness adjustment device, which includes the following steps:

[0022] The determination module is used to determine the target area in the video frame to be displayed based on the display category of the video frame to be displayed;

[0023] The acquisition module is used to acquire the standard display brightness corresponding to the preset ambient brightness inside the vehicle;

[0024] The control module is used to control the corresponding preset pixels of the target area on the vehicle's in-vehicle display screen to light up according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

[0025] In addition, this application also provides a vehicle display screen brightness adjustment device, which includes: a memory, a processor, and a vehicle display screen brightness adjustment program stored in the memory and executable on the processor. When the vehicle display screen brightness adjustment program of the vehicle display screen brightness adjustment device is executed by the processor, it implements the steps of the vehicle display screen brightness adjustment method as described above.

[0026] In addition, this application also provides a computer-readable storage medium storing a vehicle display screen brightness adjustment program, which, when executed by a processor, implements the steps of the vehicle display screen brightness adjustment method as described above.

[0027] This embodiment of the application determines the target area in the video frame to be displayed on the vehicle display screen based on the display category of the video frame to be displayed; obtains the standard display brightness corresponding to the ambient brightness inside the vehicle, and controls the corresponding pixels of the target area on the vehicle display screen to light up according to the standard display brightness, so as to display the video frame to be displayed on the vehicle display screen. Thus, compared to the traditional method of adjusting the display brightness based solely on ambient brightness, this embodiment determines the target area to be lit from the video frame to be displayed based on the display category of the video frame to be displayed, and then controls the corresponding pixels of the target area on the vehicle display screen to light up according to the obtained standard display brightness corresponding to the current ambient brightness, so as to display the current video frame on the vehicle display screen. This reduces the lit display area on the vehicle display screen, that is, reduces the energy output of the vehicle display screen, reduces the risk of overheating of the display screen, and thus improves the stability of the vehicle display screen. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the hardware operating environment of the vehicle display brightness adjustment device involved in the embodiment of this application;

[0029] Figure 2 is a flowchart illustrating the steps of the first embodiment of the vehicle display screen brightness adjustment method of this application.

[0030] Figure 3 is a semantic segmentation image schematic diagram involving an embodiment of the vehicle display screen brightness adjustment method of this application;

[0031] Figure 4 is a schematic diagram of the display screen brightness adjustment process according to an embodiment of the vehicle display screen brightness adjustment method of this application;

[0032] Figure 5 is a functional module schematic diagram of an embodiment of the vehicle display screen brightness adjustment device of this application.

[0033] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0034] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0035] Referring to Figure 1, Figure 1 is a schematic diagram of the hardware operating environment of the vehicle display brightness adjustment device involved in the embodiment of this application.

[0036] It should be noted that the embodiments of this application relate to a vehicle-mounted display screen brightness adjustment device in the field of display screen technology. Specifically, the vehicle-mounted display screen brightness adjustment device can be a smartphone, PC (Personal Computer), tablet computer, portable computer, etc.

[0037] As shown in Figure 1, the vehicle-mounted display screen brightness adjustment device may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; the user interface 1003 may also include standard wired and wireless interfaces. The network interface 1004 may include standard wired and wireless interfaces (such as Wi-Fi interfaces). The memory 1005 may be high-speed RAM or stable non-volatile memory, such as disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001. For ease of description, the execution entity of the method steps in each embodiment is omitted below.

[0038] Those skilled in the art will understand that the structure of the vehicle display brightness adjustment device shown in Figure 1 does not constitute a limitation on the vehicle display brightness adjustment device, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0039] As shown in Figure 1, the memory 1005, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a vehicle display screen brightness adjustment program.

[0040] In the terminal shown in Figure 1, the network interface 1004 is mainly used to connect to the backend server and communicate data with it; the user interface 1003 is mainly used to connect to the client and communicate data with it; and the processor 1001 can be used to call the vehicle display brightness adjustment program stored in the memory 1005 and perform the following operations:

[0041] The target region in the video frame to be displayed is determined based on the display category of the video frame to be displayed;

[0042] Obtain the standard display brightness corresponding to the preset ambient brightness inside the vehicle;

[0043] The target area is controlled to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

[0044] In one embodiment, the display category includes vehicle status information, and the operation of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0045] When the display category of the video frame to be displayed is the vehicle status information, image segmentation processing is performed on the video frame to be displayed to obtain the information carrying area of ​​the video frame to be displayed carrying effective information, and the information carrying area is determined as the target area in the video frame to be displayed.

[0046] In one embodiment, the display category includes navigation information, and the operation of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0047] When the display category of the video frame to be displayed is the navigation information, edge detection processing is performed on the video frame to be displayed to obtain the path area where the navigation route to be driven is located in the video frame to be displayed, and the path area is determined as the target area in the video frame to be displayed.

[0048] In one embodiment, the display category includes entertainment audio-visual information, and the operation of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes:

[0049] When the display category of the video frame to be displayed is entertainment audio-visual information, image segmentation processing is performed on the video frame to be displayed to obtain the foreground region in the video frame to be displayed, and the foreground region is determined as the target region in the video frame to be displayed.

[0050] In one embodiment, the operation of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, includes:

[0051] When the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, and the non-target area is controlled to light up the corresponding preset pixels on the in-vehicle display screen according to the preset display brightness, so as to display the video frame to be displayed through the in-vehicle display screen. The non-target area is the area in the video frame to be displayed other than the target area, and the preset display brightness is lower than the standard display brightness.

[0052] In one embodiment, the operation of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, further includes:

[0053] In response to a display wake-up event, a display wake-up command is generated;

[0054] Based on the display screen wake-up command, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed through the in-vehicle display screen.

[0055] In one embodiment, the display screen wake-up event is when the distance between the in-vehicle user and the in-vehicle display screen is less than a preset threshold, the in-vehicle user's line of sight falls on the in-vehicle display screen, or an interactive operation of voice wake-up is performed on the in-vehicle display screen.

[0056] Based on the above structure, various embodiments of the vehicle display screen brightness adjustment method are proposed.

[0057] With the continuous development of technology, the resolution and display effect of in-vehicle displays have been continuously improved. In-vehicle displays have become standard equipment in most vehicles and are widely used in navigation, entertainment and vehicle status monitoring.

[0058] Currently, the brightness adjustment method for in-vehicle displays mainly involves adaptively adjusting the display brightness based on the ambient light level inside the vehicle to ensure that users can clearly see the content displayed on the screen. For example, the display brightness is lower when the ambient light is low and higher when the ambient light is high. However, if the display is kept at high brightness for an extended period, it will generate a lot of heat. If heat dissipation is not timely, the internal temperature of the display may rise, affecting its normal operation. This can lead to problems such as color distortion and screen flickering, and may even cause short circuits or burnout of the display circuit board. In other words, prolonged use of in-vehicle displays can cause the display temperature to become too high, resulting in lower stability of the display.

[0059] In summary, how to provide a brightness adjustment strategy for in-vehicle displays to improve their stability has become an urgent technical problem to be solved in the field of display technology.

[0060] Please refer to Figure 2, which is a flowchart illustrating the first embodiment of the vehicle display brightness adjustment method of this application. It should be noted that although the logical order is shown in the flowchart, in some cases, the vehicle display brightness adjustment method of this application may execute the steps shown or described in a different order. In this embodiment, the executing entity of the vehicle display brightness adjustment method can be a personal computer, smartphone, or other device, and this is not limited in this embodiment. The vehicle display brightness adjustment method includes:

[0061] Step S10: Determine the target area in the video frame to be displayed based on the display category of the video frame to be displayed;

[0062] The in-vehicle display obtains the video stream to be displayed from the vehicle's main controller, and determines the single frame of image data to be displayed within the video stream, i.e., the aforementioned video frame to be displayed. It should be understood that the content displayed on the in-vehicle display may include, but is not limited to, vehicle status information, navigation information, and entertainment / audio-visual information. The display category is determined based on the content displayed on the video frame to be displayed on the in-vehicle display. For example, if the content displayed on the in-vehicle display is vehicle navigation information, the display category of the current video frame to be displayed is determined to be navigation information.

[0063] In this embodiment, the area to be lit up in the video frame to be displayed (hereinafter referred to as the target area for distinction) is determined based on the display category of the video frame to be displayed.

[0064] In one feasible implementation, the display category includes vehicle status information, and step S10 includes:

[0065] Step S101: When the display category of the video frame to be displayed is the vehicle status information, perform image segmentation processing on the video frame to be displayed to obtain the information carrying area carrying effective information in the video frame to be displayed, and determine the information carrying area as the target area in the video frame to be displayed.

[0066] In this embodiment, when the display category of the video frame to be displayed is vehicle status information, image segmentation processing is performed on the video frame to be displayed that carries vehicle status information to obtain the information-carrying area and non-information-carrying area in the video frame to be displayed. The information-carrying area in the video frame to be displayed is the area in the video frame to be displayed that carries valid information (vehicle status information), and the non-information-carrying area in the video frame to be displayed is the area in the video frame to be displayed other than the information-carrying area. Then, the information-carrying area that carries valid information is determined as the target area in the video frame to be displayed.

[0067] For example, after acquiring the video frame to be displayed, preprocessing such as noise reduction, grayscale conversion, and enhancement is performed on the video frame to be displayed to obtain preprocessed image data. Then, the preprocessed image data is input into a pre-trained target model for semantic segmentation of the image (hereinafter referred to as the first target model for distinction) to obtain a semantic segmentation image. Figure 3 shows a schematic diagram of the semantic segmentation image. The semantic segmentation image contains rectangular boxes that label the regions carrying effective information in the preprocessed image. These are, respectively, rectangle 1 containing vehicle status information 1, rectangle 2 containing vehicle status information 2, rectangle 3 containing vehicle status information 3, rectangle 4 containing virtual button 1, and rectangle 5 containing virtual button 2. It should be understood that the regions contained in each rectangle are the regions carrying effective information in the video frame to be displayed, i.e., the aforementioned information-carrying areas. It should be noted that the aforementioned first target model can be a convolutional neural network model.

[0068] In another feasible implementation, the display category includes navigation information, and step S10 includes:

[0069] Step S102: When the display category of the video frame to be displayed is the navigation information, perform edge detection processing on the video frame to be displayed to obtain the path area where the navigation route to be driven is located in the video frame to be displayed, and determine the path area as the target area in the video frame to be displayed.

[0070] In this embodiment, when the display category of the video frame to be displayed is navigation information, edge detection processing is performed on the video frame to be displayed to obtain the path area containing the navigation route to be driven and the non-target area in the video frame to be displayed other than the path area. Then, the information carrying area carrying valid information is determined as the target area in the video frame to be displayed.

[0071] For example, after acquiring the video frame to be displayed, preprocessing such as noise reduction, grayscale conversion, and enhancement is performed on the video frame to be displayed to obtain preprocessed image data. Then, the preprocessed image data is input into a pre-trained target model for image edge detection (hereinafter referred to as the second target model for distinction) to obtain an edge detection image. The semantic segmentation image includes annotations of the navigation path contours in the preprocessed image, and the annotated areas are determined to be the path regions in the video frame to be displayed that contain the navigation route to be driven. It should be noted that the above-mentioned first target model can be the Canny algorithm model.

[0072] In another feasible embodiment, the display category includes entertainment audio-visual information, and step S10 includes:

[0073] Step S103: If the display category of the video frame to be displayed is the entertainment audio-visual information, perform image segmentation processing on the video frame to be displayed to obtain the foreground region in the video frame to be displayed, and determine the foreground region as the target region in the video frame to be displayed.

[0074] In this embodiment, when the display category of the video frame to be displayed is entertainment audio-visual information, image segmentation processing is performed on the video frame to be displayed to obtain the foreground region and the non-target region other than the foreground region in the video frame to be displayed. Then, the foreground region determined from the video frame to be displayed is determined as the target region in the video frame to be displayed.

[0075] For example, after acquiring the video frame to be displayed, the video frame to be displayed is preprocessed such as noise reduction, grayscale conversion and enhancement to obtain preprocessed image data. Then, the preprocessed image data is input into a pre-trained first target model for semantic segmentation of the image to obtain a semantically segmented image, i.e. the foreground region mentioned above.

[0076] Step S20: Obtain the standard display brightness corresponding to the preset ambient brightness inside the vehicle;

[0077] In this embodiment, the display brightness of the in-vehicle display screen is determined in advance based on the ambient brightness inside the vehicle, i.e., the aforementioned standard display brightness. This standard display brightness allows users inside the vehicle to easily see the content displayed on the in-vehicle display screen. A mapping relationship table between the ambient brightness inside the vehicle and the display brightness of the in-vehicle display screen is determined in advance based on a large amount of experimental data. Before displaying the video frame to be displayed, the real-time ambient brightness is detected based on the illuminance sensor inside the vehicle, and the corresponding preset standard display brightness is looked up in the mapping relationship table based on the detected ambient brightness.

[0078] Step S30: Control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

[0079] In this embodiment, based on the target area in the video frame to be displayed, the corresponding pixel points of the target area are determined on the vehicle display screen, and the backlight area of ​​the corresponding pixel points is controlled to light up according to the above standard display brightness so as to display the video frame to be displayed on the vehicle display screen.

[0080] In a specific implementation, step S30 includes:

[0081] Step S301: When the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, and control the non-target area to light up the corresponding preset pixels on the in-vehicle display screen according to the preset display brightness, so as to display the video frame to be displayed through the in-vehicle display screen. The non-target area is the area in the video frame to be displayed other than the target area, and the preset display brightness is lower than the standard display brightness.

[0082] In this embodiment, when the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, the target area in the video frame to be displayed is controlled to have its corresponding pixels on the vehicle display screen illuminated at a preset display brightness. At the same time, the non-target areas in the video frame to be displayed, excluding the target area, are controlled to have their corresponding pixels on the vehicle display screen illuminated at a preset display brightness, so as to display the video frame to be displayed on the vehicle display screen. In this application, the specific value of the preset display brightness is not limited. In this application, the preset display brightness can be any brightness value that is less than the standard display brightness corresponding to the current ambient brightness. In this embodiment, the preset display brightness is set to 70% of the current standard display brightness.

[0083] In one feasible embodiment, when the display category of the video frame to be displayed is vehicle status information, the target area in the video frame is controlled to have its corresponding pixels on the vehicle display screen at a preset display brightness, while the non-target areas in the video frame (excluding the target area) are controlled to have their corresponding pixels on the vehicle display screen lit up at a preset display brightness, so as to display the video frame to be displayed on the vehicle display screen. In another feasible embodiment, when the display category of the video frame to be displayed is vehicle status information, the target area in the video frame is controlled to have its corresponding pixels on the vehicle display screen at a preset display brightness, while the non-target areas in the video frame (excluding the target area) are controlled to have their corresponding pixels on the vehicle display screen at a preset brightness of zero, so as to display the video frame to be displayed on the vehicle display screen.

[0084] Thus, this application determines the target area in the video frame to be displayed on the vehicle display screen based on the display category of the video frame to be displayed; obtains the standard display brightness corresponding to the preset ambient brightness inside the vehicle, and controls the corresponding pixels of the target area on the vehicle display screen to light up according to the standard display brightness, so as to display the video frame to be displayed on the vehicle display screen. Therefore, compared to the traditional method of adjusting the display brightness based solely on ambient brightness, this application determines the target area to be lit from the video frame to be displayed based on the display category of the video frame to be displayed, and then controls the corresponding pixels of the target area on the vehicle display screen to light up according to the obtained standard display brightness corresponding to the current ambient brightness, so as to display the current video frame on the vehicle display screen. This reduces the lit display area on the vehicle display screen, that is, reduces the energy output of the vehicle display screen, reduces the risk of overheating of the display screen, and thus improves the stability of the vehicle display screen.

[0085] In one embodiment, based on the first embodiment of the vehicle display screen brightness adjustment method of this application described above, a second embodiment of the vehicle display screen brightness adjustment method of this application is proposed.

[0086] In this embodiment, step S30 further includes:

[0087] Step S301: In response to the display wake-up event, generate a display wake-up command;

[0088] Step S302: Based on the display screen wake-up command, control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed through the in-vehicle display screen.

[0089] In this embodiment, in response to a display wake-up event triggered by a user inside the vehicle, a display wake-up command is generated, and based on the display wake-up command, the target area in the video frame to be displayed is controlled to light up the corresponding pixels on the vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the vehicle display screen.

[0090] The aforementioned display screen wake-up events are: the distance between the in-vehicle user and the in-vehicle display screen is less than a preset threshold (hereinafter referred to as the first display screen wake-up event for distinction), the in-vehicle user's line of sight falls on the in-vehicle display screen (hereinafter referred to as the second display screen wake-up event for distinction), or the in-vehicle display screen performs a voice wake-up interactive operation (hereinafter referred to as the third display screen wake-up event for distinction).

[0091] In one feasible implementation, a valid display screen wake-up event is determined based on the display category of the video frame to be displayed. Specifically, when the display category of the video frame to be displayed is vehicle status information, a valid display screen wake-up event is when the user's line of sight falls on the in-vehicle display screen or when the user performs a voice wake-up operation on the in-vehicle display screen. That is, when the user's line of sight is detected to be falling on the in-vehicle display screen, a display screen wake-up event is triggered, controlling the in-vehicle display screen to display the video frame to be displayed; or, when the microphone in the vehicle receives a voice command to wake up the in-vehicle display screen, a display screen wake-up event is triggered, controlling the in-vehicle display screen to display the video frame to be displayed. When the display category of the video frame to be displayed is navigation information or media video... In the case of voice information, a valid display wake-up event is triggered when the distance between the in-vehicle user and the in-vehicle display is less than a preset threshold, the in-vehicle user's line of sight falls on the in-vehicle display, or an interactive operation of voice wake-up is performed on the in-vehicle display. That is, when the distance between the in-vehicle user and the in-vehicle display is detected to be less than the preset threshold, the display wake-up event is triggered, and the in-vehicle display is controlled to display the video frame to be displayed; or, when the in-vehicle user's line of sight falls on the in-vehicle display, the display wake-up event is triggered, and the in-vehicle display is controlled to display the video frame to be displayed; or, when the microphone in the vehicle receives a voice command to wake up the in-vehicle display, the display wake-up event is triggered, and the in-vehicle display is controlled to display the video frame to be displayed.

[0092] For example, as shown in Figure 4, which is a schematic diagram of the display brightness adjustment process, firstly, the target area in the video frame to be displayed is determined based on the display category of the current video frame to be displayed, and a valid display wake-up event is determined based on the display category of the current video frame to be displayed; it is detected whether the user has triggered a valid display wake-up event; if so, the target area of ​​the video frame to be displayed is displayed on the vehicle display screen, and then the display is put into sleep mode after a preset duration; if not, the sleep mode is maintained.

[0093] Thus, this application embodiment sets an automatic wake-up mechanism to determine whether the user in the vehicle needs to activate the display function of the vehicle display screen. If no wake-up event is detected, the vehicle display screen is kept in a sleep state to save energy, thereby reducing the risk of overheating of the display screen and improving the stability of the vehicle display screen.

[0094] In addition, this application also provides a vehicle display screen brightness adjustment device.

[0095] Please refer to Figure 5, which is a functional block diagram of an embodiment of the vehicle display screen brightness adjustment device of this application. As shown in Figure 5, the vehicle display screen brightness adjustment device of this application includes:

[0096] The determining module 10 is used to determine the target area in the video frame to be displayed based on the display category of the video frame to be displayed;

[0097] The acquisition module 20 is used to acquire the standard display brightness corresponding to the preset ambient brightness inside the vehicle;

[0098] The control module 30 is used to control the corresponding preset pixels of the target area on the vehicle's in-vehicle display screen to light up according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

[0099] In one embodiment, the display category includes vehicle status information. The determining module 10 is further configured to perform image segmentation processing on the video frame to be displayed when the display category of the video frame to be displayed is the vehicle status information, to obtain an information carrying area carrying valid information in the video frame to be displayed, and to determine the information carrying area as the target area in the video frame to be displayed.

[0100] In one embodiment, the display category includes navigation information. The determining module 10 is further configured to perform edge detection processing on the video frame to be displayed when the display category of the video frame to be displayed is the navigation information, to obtain the path area where the navigation route to be driven is located in the video frame to be displayed, and to determine the path area as the target area in the video frame to be displayed.

[0101] In one embodiment, the display category includes entertainment audio-visual information. The determining module 10 is further configured to perform image segmentation processing on the video frame to be displayed when the display category of the video frame to be displayed is the entertainment audio-visual information, to obtain the foreground region in the video frame to be displayed, and to determine the foreground region as the target region in the video frame to be displayed.

[0102] In one embodiment, the control module 30 is further configured to, when the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, and control the non-target area to light up the corresponding preset pixels on the in-vehicle display screen according to the preset display brightness, so as to display the video frame to be displayed through the in-vehicle display screen, wherein the non-target area is the area in the video frame to be displayed other than the target area, and the preset display brightness is lower than the standard display brightness.

[0103] In one embodiment, the control module 30 is further configured to generate a display screen wake-up command in response to a display screen wake-up event; and control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness based on the display screen wake-up command, so as to display the video frame to be displayed on the in-vehicle display screen.

[0104] In one embodiment, the display screen wake-up event is when the distance between the in-vehicle user and the in-vehicle display screen is less than a preset threshold, the in-vehicle user's line of sight falls on the in-vehicle display screen, or an interactive operation of voice wake-up is performed on the in-vehicle display screen.

[0105] This application also provides a computer storage medium storing a vehicle display screen brightness adjustment program, which, when executed by a processor, implements the steps of the vehicle display screen brightness adjustment program method as described in any of the above embodiments.

[0106] The specific embodiments of the computer storage medium in this application are basically the same as the embodiments of the vehicle display screen brightness adjustment program method described above, and will not be repeated here.

[0107] This application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the steps of the vehicle display screen brightness adjustment method of this application as described in any of the above embodiments, which will not be repeated here.

[0108] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0109] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0110] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a vehicle display brightness adjustment device (which may be a TWS earphone, etc.) to execute the methods described in the various embodiments of this application.

[0111] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for adjusting the brightness of an in-vehicle display screen, wherein, The method for adjusting the brightness of the vehicle-mounted display screen includes the following steps: The target region in the video frame to be displayed is determined based on the display category of the video frame to be displayed; Obtain the standard display brightness corresponding to the preset ambient brightness inside the vehicle; The target area is controlled to illuminate corresponding pixels on the vehicle's in-vehicle display screen according to the standard brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

2. The method for adjusting the brightness of an in-vehicle display screen as described in claim 1, wherein, The display category includes vehicle status information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes: When the display category of the video frame to be displayed is the vehicle status information, image segmentation processing is performed on the video frame to be displayed to obtain the information carrying area of ​​the video frame to be displayed carrying effective information, and the information carrying area is determined as the target area in the video frame to be displayed.

3. The method for adjusting the brightness of an in-vehicle display screen as described in claim 1, wherein, The display category includes navigation information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes: When the display category of the video frame to be displayed is the navigation information, edge detection processing is performed on the video frame to be displayed to obtain the path area where the navigation route to be driven is located in the video frame to be displayed, and the path area is determined as the target area in the video frame to be displayed.

4. The method for adjusting the brightness of an in-vehicle display screen as described in claim 1, wherein, The display category includes entertainment audio-visual information, and the step of determining the target region in the video frame to be displayed based on the display category of the video stream to be displayed includes: When the display category of the video frame to be displayed is entertainment audio-visual information, image segmentation processing is performed on the video frame to be displayed to obtain the foreground region in the video frame to be displayed, and the foreground region is determined as the target region in the video frame to be displayed.

5. The method for adjusting the brightness of an in-vehicle display screen as described in claim 1, wherein, The step of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, includes: When the display category of the video frame to be displayed is navigation information or entertainment audio-visual information, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, and the non-target area is controlled to light up the corresponding preset pixels on the in-vehicle display screen according to the preset display brightness, so as to display the video frame to be displayed through the in-vehicle display screen. The non-target area is the area in the video frame to be displayed other than the target area, and the preset display brightness is lower than the standard display brightness.

6. The method for adjusting the brightness of an in-vehicle display screen as described in claim 1, wherein, The step of controlling the target area to light up corresponding pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen, further includes: In response to a display wake-up event, a display wake-up command is generated; Based on the display screen wake-up command, the target area is controlled to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed through the in-vehicle display screen.

7. The method for adjusting the brightness of an in-vehicle display screen as described in claim 6, wherein, The display screen wake-up event is triggered when the distance between the user in the vehicle and the in-vehicle display screen is less than a preset threshold, the user's line of sight falls on the in-vehicle display screen, or the user performs a voice wake-up interaction on the in-vehicle display screen.

8. A brightness adjustment device for a vehicle-mounted display screen, wherein, The vehicle-mounted display screen brightness adjustment device includes: The determination module is configured to determine the target area in the video frame to be displayed based on the display category of the video frame to be displayed; The acquisition module is configured to acquire the standard display brightness corresponding to the preset ambient brightness inside the vehicle. The control module is configured to control the target area to light up the corresponding preset pixels on the vehicle's in-vehicle display screen according to the standard display brightness, so as to display the video frame to be displayed on the in-vehicle display screen.

9. A brightness adjustment device for a vehicle-mounted display screen, wherein, The vehicle display screen brightness adjustment device includes a memory and a processor. The memory stores a vehicle display screen brightness adjustment program that can run on the processor. When the vehicle display screen brightness adjustment program is executed by the processor, it implements the steps of the vehicle display screen brightness adjustment method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, wherein, The computer-readable storage medium stores a vehicle display screen brightness adjustment program, which, when executed by a processor, implements the steps of the vehicle display screen brightness adjustment method as described in any one of claims 1 to 7.

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